NBC renews 'Office,' '30 Rock'

The shows are part of the network's Thursday-night comedy lineup, along with "Parks and Recreation," which NBC previously announced it had renewed.

The new seasons of the four shows are to air in 2010-11.

"We are happy to give these early pickups to these critically acclaimed, incredibly funny comedies," Angela Bromstad, president of primetime entertainment at NBC and Universal Media Studios, said in a statement Friday. "As a result, we look forward to continuing our rewarding partnership with the respective creative teams and talented show-runners for '30 Rock,' 'The Office' and 'Community' as they all consistently deliver quality shows."

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